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Place Value Cards

Place Value Cards
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2020-07-07 02:15
SequenceCoordinate GeometryGeometric Construction
This example demonstrates place value cards, involving the composition of natural numbers. Using GeoGebra commands such as Length, Textfield, and TextToUnicode, it dynamically shows the composition and conversion of digits. Suitable for high-grade elementary and junior high school students to learn digit concepts and basic arithmetic operations.

GeoGebra Commands & Parameters

  1. Length(numero) → digits
  2. Textfield(numero) → inputBox1
  3. TextToUnicode(numero) → list1
  4. Sequence(Element[list1, i] - 48, i, 1, digits) → list2
  5. Element(list2, 1) → a
  6. If(digits ≟ 5, Element[list2, 3], If[digits ≟ 4, Element[list2, 2], If[digits ≟ 3, Element[list2, 1], If[digits < 3, 0, 0]]]) → hun
  7. If(digits ≟ 5, Element[list2, 2], If[digits ≟ 4, Element[list2, 1], If[digits < 4, 0, 0]]) → thous
  8. If(digits ≟ 5, Element[list2, 1], If[digits < 5, 0, 0]) → tenthous
  9. If(digits ≟ 5, Element[list2, 4], If[digits ≟ 4, Element[list2, 3], If[digits ≟ 3, Element[list2, 2], If[digits ≟ 2, Element[list2, 1], If[digits < 2, 0, 0]]]]) → ten
  10. If(digits ≟ 5, Element[list2, 5], If[digits ≟ 4, Element[list2, 4], If[digits ≟ 3, Element[list2, 3], If[digits ≟ 2, Element[list2, 2], If[digits < 2, Element[list2, 1], 0]]]]) → one

AI Drawing Prompt Reference

Create a place value board to display a 5-digit number. First, input a 5-digit number, then dynamically show the cards for ten-thousands, thousands, hundreds, tens, and units. Automatically adjust the content of each digit card based on the input number.
The prompt above was compiled from the original drawing commands and is for reference only.